mirror of
https://github.com/torvalds/linux
synced 2024-11-05 18:23:50 +00:00
drm/nvd0/disp: start on SOR encoder functions
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs
parent
efd272a7a0
commit
83fc083cbb
1 changed files with 202 additions and 1 deletions
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@ -23,7 +23,9 @@
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*/
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#include <linux/dma-mapping.h>
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#include "drmP.h"
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#include "drm_crtc_helper.h"
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#include "nouveau_drv.h"
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#include "nouveau_connector.h"
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@ -92,6 +94,12 @@ evo_kick(u32 *push, struct drm_device *dev, int id)
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#define evo_mthd(p,m,s) *((p)++) = (((s) << 18) | (m))
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#define evo_data(p,d) *((p)++) = (d)
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static struct drm_crtc *
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nvd0_display_crtc_get(struct drm_encoder *encoder)
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{
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return nouveau_encoder(encoder)->crtc;
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}
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/******************************************************************************
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* DAC
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*****************************************************************************/
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@ -99,6 +107,163 @@ evo_kick(u32 *push, struct drm_device *dev, int id)
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/******************************************************************************
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* SOR
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*****************************************************************************/
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static void
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nvd0_sor_dpms(struct drm_encoder *encoder, int mode)
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{
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struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
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struct drm_device *dev = encoder->dev;
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struct drm_encoder *partner;
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int or = nv_encoder->or;
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u32 dpms_ctrl;
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nv_encoder->last_dpms = mode;
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list_for_each_entry(partner, &dev->mode_config.encoder_list, head) {
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struct nouveau_encoder *nv_partner = nouveau_encoder(partner);
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if (partner->encoder_type != DRM_MODE_ENCODER_TMDS)
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continue;
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if (nv_partner != nv_encoder &&
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nv_partner->dcb->or == nv_encoder->or) {
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if (nv_partner->last_dpms == DRM_MODE_DPMS_ON)
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return;
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break;
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}
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}
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dpms_ctrl = (mode == DRM_MODE_DPMS_ON);
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dpms_ctrl |= 0x80000000;
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nv_wait(dev, 0x61c004 + (or * 0x0800), 0x80000000, 0x00000000);
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nv_mask(dev, 0x61c004 + (or * 0x0800), 0x80000001, dpms_ctrl);
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nv_wait(dev, 0x61c004 + (or * 0x0800), 0x80000000, 0x00000000);
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nv_wait(dev, 0x61c030 + (or * 0x0800), 0x10000000, 0x00000000);
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}
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static bool
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nvd0_sor_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode,
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struct drm_display_mode *adjusted_mode)
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{
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struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
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struct nouveau_connector *nv_connector;
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nv_connector = nouveau_encoder_connector_get(nv_encoder);
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if (nv_connector && nv_connector->native_mode) {
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if (nv_connector->scaling_mode != DRM_MODE_SCALE_NONE) {
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int id = adjusted_mode->base.id;
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*adjusted_mode = *nv_connector->native_mode;
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adjusted_mode->base.id = id;
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}
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}
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return true;
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}
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static void
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nvd0_sor_prepare(struct drm_encoder *encoder)
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{
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}
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static void
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nvd0_sor_commit(struct drm_encoder *encoder)
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{
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}
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static void
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nvd0_sor_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
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struct drm_display_mode *adjusted_mode)
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{
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struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
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struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
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u32 mode_ctrl = (1 << nv_crtc->index);
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u32 *push;
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if (nv_encoder->dcb->sorconf.link & 1) {
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if (adjusted_mode->clock < 165000)
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mode_ctrl |= 0x00000100;
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else
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mode_ctrl |= 0x00000500;
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} else {
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mode_ctrl |= 0x00000200;
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}
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nvd0_sor_dpms(encoder, DRM_MODE_DPMS_ON);
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push = evo_wait(encoder->dev, 0, 2);
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if (push) {
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evo_mthd(push, 0x0200 + (nv_encoder->or * 0x20), 1);
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evo_data(push, mode_ctrl);
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}
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nv_encoder->crtc = encoder->crtc;
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}
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static void
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nvd0_sor_disconnect(struct drm_encoder *encoder)
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{
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struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
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struct drm_device *dev = encoder->dev;
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if (nv_encoder->crtc) {
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u32 *push = evo_wait(dev, 0, 4);
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if (push) {
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evo_mthd(push, 0x0200 + (nv_encoder->or * 0x20), 1);
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evo_data(push, 0x00000000);
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evo_mthd(push, 0x0080, 1);
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evo_data(push, 0x00000000);
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evo_kick(push, dev, 0);
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}
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nv_encoder->crtc = NULL;
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nv_encoder->last_dpms = DRM_MODE_DPMS_OFF;
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}
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}
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static void
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nvd0_sor_destroy(struct drm_encoder *encoder)
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{
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drm_encoder_cleanup(encoder);
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kfree(encoder);
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}
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static const struct drm_encoder_helper_funcs nvd0_sor_hfunc = {
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.dpms = nvd0_sor_dpms,
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.mode_fixup = nvd0_sor_mode_fixup,
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.prepare = nvd0_sor_prepare,
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.commit = nvd0_sor_commit,
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.mode_set = nvd0_sor_mode_set,
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.disable = nvd0_sor_disconnect,
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.get_crtc = nvd0_display_crtc_get,
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};
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static const struct drm_encoder_funcs nvd0_sor_func = {
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.destroy = nvd0_sor_destroy,
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};
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static int
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nvd0_sor_create(struct drm_connector *connector, struct dcb_entry *dcbe)
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{
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struct drm_device *dev = connector->dev;
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struct nouveau_encoder *nv_encoder;
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struct drm_encoder *encoder;
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nv_encoder = kzalloc(sizeof(*nv_encoder), GFP_KERNEL);
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if (!nv_encoder)
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return -ENOMEM;
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nv_encoder->dcb = dcbe;
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nv_encoder->or = ffs(dcbe->or) - 1;
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nv_encoder->last_dpms = DRM_MODE_DPMS_OFF;
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encoder = to_drm_encoder(nv_encoder);
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encoder->possible_crtcs = dcbe->heads;
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encoder->possible_clones = 0;
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drm_encoder_init(dev, encoder, &nvd0_sor_func, DRM_MODE_ENCODER_TMDS);
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drm_encoder_helper_add(encoder, &nvd0_sor_hfunc);
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drm_mode_connector_attach_encoder(connector, encoder);
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return 0;
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}
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/******************************************************************************
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* IRQ
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@ -256,15 +421,51 @@ nvd0_display_create(struct drm_device *dev)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_instmem_engine *pinstmem = &dev_priv->engine.instmem;
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struct dcb_table *dcb = &dev_priv->vbios.dcb;
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struct drm_connector *connector, *tmp;
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struct pci_dev *pdev = dev->pdev;
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struct nvd0_display *disp;
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int ret;
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struct dcb_entry *dcbe;
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int ret, i;
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disp = kzalloc(sizeof(*disp), GFP_KERNEL);
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if (!disp)
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return -ENOMEM;
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dev_priv->engine.display.priv = disp;
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/* create encoder/connector objects based on VBIOS DCB table */
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for (i = 0, dcbe = &dcb->entry[0]; i < dcb->entries; i++, dcbe++) {
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connector = nouveau_connector_create(dev, dcbe->connector);
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if (IS_ERR(connector))
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continue;
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if (dcbe->location != DCB_LOC_ON_CHIP) {
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NV_WARN(dev, "skipping off-chip encoder %d/%d\n",
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dcbe->type, ffs(dcbe->or) - 1);
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continue;
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}
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switch (dcbe->type) {
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case OUTPUT_TMDS:
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nvd0_sor_create(connector, dcbe);
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break;
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default:
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NV_WARN(dev, "skipping unsupported encoder %d/%d\n",
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dcbe->type, ffs(dcbe->or) - 1);
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continue;
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}
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}
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/* cull any connectors we created that don't have an encoder */
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list_for_each_entry_safe(connector, tmp, &dev->mode_config.connector_list, head) {
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if (connector->encoder_ids[0])
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continue;
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NV_WARN(dev, "%s has no encoders, removing\n",
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drm_get_connector_name(connector));
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connector->funcs->destroy(connector);
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}
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/* setup interrupt handling */
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nouveau_irq_register(dev, 26, nvd0_display_intr);
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